No tag gun Required. Once locked can"t open without cutting them. * Also Available in 3",5",7", and 9" and Colored in 5".Please Check my Store * IF YOU NEED IN BIG QUANTITY, PLEASE SEND ME A MESSAGE. * $300 for 100,000 Pcs in any size MIX "n" MATCH including shipping inside USA. * For international buyer please send me message about the shipping price.